In this paper synthesis works of a dobby driving mechanism had been explained. Dobby experimental set has been constructed sum of three main parts; driving mechanism, program reading and locking unit; and mechanism for elevating motion to the frames. Sythesis work of driving mechanism is completed using analytical and mathematical approaches. Studied dobby construction is a unique fourteen framed rotary dobby mechanism, design works and experimental set building processes are carried out as part of a research project in a collaborative work of Suleyman Demirel University and Pamukkale University. The most important innovation is in the motion transmission mechanism on the main shaft of the rotational dobby. Main shaft is driven by oscilational motion with dwell period. Constructional analysis and synthesis works carried out during the mechanical designing period of the dobby driving mechanism is given in detail. Proposed dobby design can be considered to be manufactured and advised to be used on most of the standart weaving machines.